3.5.2. Dice
6-sided dice are permitted for use as randomizers, so long as each die is a cube, where each side has the same surface area.
Dice must have well-rounded corners to ensure that it rolls on the playing surface.
Dice should be of an appropriate size that the result can easily be understood by both the players and the judges. This includes size and lettering or numbering on the die.
One side may have custom-precision etching in place of the 1 or the 6 as long as all custom dice being used by that player have the same side customized and both players approve the use of the die.
The numbers or pips on the opposite sides of the die must add up to 7 (i.e., 1 must be opposite of 6). A custom-etched side uses the number replaced when determining if the opposite sides add up to 7.
Dice used as randomizers must be transparent or translucent.
When rolling a die, the player should shake the die in an open, cupped palm so that both players can see the die bouncing around in the player’s hand. The die should then be rolled along the table in a manner that forces it to bounce several times before stopping. Alternately, the die can be flipped into the air from shoulder height, so that it spins at least three times before landing.
Dice used as randomizers must be clearly distinguishable, either in size, color, or marking, from dice being used as damage counters by either player.